TI launch WLAN-GSM integration

Here is something that I came across that is of interest since it has the
potential to reform the mobile communication industry.  It is a little
technical, but has implications for the development of WiFi/cell phone
handsets that would combine the functions of traditional mobile phones with
those of WiFi terminals.

http://news.designtechnica.com/article3090.html

TI Announces 802.11 Platform For Mobiles

Monday, March 22 @ 06:51:22 PST

Texas Instruments today unveiled its third generation 802.11 solution
specifically designed for mobile devices such as cell phones, smartphones
and PDAs

By focusing on manufacturers’ system-level design needs for handsets, TI
has laid the groundwork for a highly-optimized dual-mode handset. The
TNETW1250 chipset has been designed to be used with TI’ s OMAP application
processors, GSM, GPRS, CDMA and EDGE chipsets and single-chip Bluetooth
solution. Architecture innovations in the TNETW1250 such as on-chip power
management, re-use of cellular clock frequencies, and low pin-count host
interfaces were included to eliminate barriers for integration of WLAN into
cellular handset designs.

“TI was one of the very first companies to recognize and address Wi-Fi
requirements for very small form factors such as cell phones two years ago.
TI continues to draw on its wireless expertise and innovation, providing
ultra-low-power, compact solutions that will help to shape the WLAN mobile
device market,” said Aaron Vance, Senior Analyst, Synergy Research
Group. “With its diversified portfolio of dual-band WLAN chipsets, OMAP
application processors, Bluetooth and VoIP leadership, TI has drawn an
extremely viable blueprint for Wi-Fi’s future in cell phones.”

 Designed Specifically for Mobile Phones

Through TI’s ELP technology for low power standby modes, the TNETW1250
offers the industry’s best sub-400 microAmperes (µA) standby power
consumption, which has been highly optimized through TI’ s extensive mobile
product experience. With 50 percent power reduction in active modes, the
TNETW1250 is designed for real world cell phone applications including
VoWLAN, streaming media and fast roaming between access points. For
additional power reduction, the host processor is only used for transmit
and receive functions, allowing it to stay in a low power mode to increase
battery savings at the system level.

“2004 is expected to be a pivotal year for Wi-Fi enabled portable devices,
as more 802.11-enabled cell phones and PDAs hit the market,” said Marc
Cetto, general manager of TI’s Mobile Connectivity Solutions. “Today,
several companies are offering phones and PDAs using TI’s 802.11b mobile
solutions. The TNETW1250 platform will allow manufacturers to quickly
deploy new 802.11a/b/g-enabled mobile devices that are smaller and offer
maximum battery life.

In addition to size and power reductions, the TNETW1250 offers unmatched
cost savings and easier design for cell phone manufacturers. The 70 percent
reduction in system-level chip count provides a significant decrease in the
bill of materials (BOM) reducing board and design complexity. The TNETW1250
supports all security and quality of service standards including WPA2 and
WME, eliminating further design time for manufacturers.

Accompanying the TNETW1250, TI is also announcing the TNETW3422M, a highly
optimized 2.4GHz single-chip, RF transceiver and power amplifier. This
radio, which uses direct conversion architecture, is ideal for use in a
cellular handset for size, cost and power consumption advantages. Also, the
absence of intermediate frequency noise enables much simpler RF planning
inside the complex environment of a cell phone.

To address the migration of TI’s mobile WLAN customers from the TNETW1230
and TNETW1100B, TI will continue to leverage its modular embedded station
developer’s kit (eSTADK). The eSTADK was designed to meet the unique
requirements of the mobile embedded market and includes programming and
hardware design tools, as well as sample reference designs to streamline
the development process and accelerate customized design

BINNEH S MINTEH

NEW YORK UNIVERSITY

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